Where is the throttle body on an engine?
Sitting between your engine’s air filter housing and intake manifold, a throttle body assembly exists for the purpose of controlling how much air enters a fuel-injected engine.
Do you need to match throttle body to intake manifold?
You need to match your throttle body to your intake and cams that you have. Chucking any old throttle body and intake manifold won’t give you gains and could potentially loose you power. On a Non vtec motor, there really isn’t much to gain as you don’t have a high or low cam you have just the one.
What should I do after replacing my throttle body?
After replacing the throttle body to your engine, if the engine light was on and has a pending code, the code will go away. If the code was a hard permanent code, then the ECM (computer) would need a hard reset. Remove the negative battery cable (-) and keep it off for about 13 minutes, then hook up the battery cable and make sure it is tight.
Why do you need a bigger throttle body?
Most manufacturers choose a throttle body diameters that is going to keep things slow and steady. Pushing the throttle to 50% will ensure that 50% airflow is allowed through. This is going to change when you make the upgrade. The bigger body will allow more air to flow through at lower RPMs.
Why might you choose to use an aftermarket throttle body?
One of the few reasons to change to an aftermarket throttle body is performance. The throttle body is a common bottle neck that may restrict air flow. This restriction comes from one of two places. The engine has had upgrades or some kind that allow it to “breath” better.
What happens when you upgrade the throttle body on a Mustang?
The engine then adds the appropriate amount of fuel for the incoming air, making your Mustang accelerate. Many Mustang owners upgrade their cold air intake to allow more air to enter the engine, but they may also neglect to upgrade the throttle body.
Why is the throttle body a bottle neck?
The throttle body is a common bottle neck that may restrict air flow. This restriction comes from one of two places. The engine has had upgrades or some kind that allow it to “breath” better. While the throttle body was not restrictive before the upgrades, now that the engine thirst for more air the throttle body becomes a bottle neck.
What happens when you add air to a throttle?
Likewise, adding air without increasing fuel will cause a “lean” running condition and a noticeable drop in power. The Holley Billet LS Throttle Body. We recommend choosing the largest throttle body sizes only if you’ve made fuel delivery and high-power modifications to your vehicle.